20. All these things I hold in my memory, and I remember how I learned them. I also remember many things that I have heard quite falsely urged against them, which, even if they are false, yet it is not false that I have remembered them. And I also remember that I have distinguished between the truths and the false objections, and now I see that it is one thing to distinguish these things and another to remember that I did distinguish them when I have cogitated on them. I remember, then, both that I have often understood these things and also that I am now storing away in my memory what I distinguish and comprehend of them so that later on I may remember just as I understand them now. Therefore, I remember that I remembered, so that if afterward I call to mind that I once was able to remember these things it will be through the power of memory that I recall it.